[mod_python] problem importing numarray

I wonder what mod_perl does in this case.  Perhaps argv should contain the 
command line that launched the first apache process?

Nick

Graham Dumpleton wrote:
> The sys.argv array isn't usually available when Python interpreters are
> being embedded into a C/C++ program as is the case with mod_python.
> 
> I would suggest it is bad for a package to always assume that it will only
> ever be used from standard "python" program exclusively.
> 
> A quick hack you can use to get around the problem is:
> 
>   import sys
>   sys.argv = [ "mod_python" ]
>   import numarray
> 
> This issue with sys.argv has come up before recently. Was thinking at
> the time whether mod_python when initialised should setup a bodgy
> sys.argv to avoid these problems.
> 
> Graham
> 
> Patrik Jonsson wrote ..
> 
>>hi,
>>
>>I just started playing with mod_python and I have a problem importing
>>the numarray module. it works fine from the command line, but not when
>>executed through mod_python.  I have the Publisher handler and a very
>>basic script:
>>
>>"
>>import numarray
>>"
>>
>>This gives the following output:
>>
>>Mod_python error: "PythonHandler mod_python.publisher"
>>
>>Traceback (most recent call last):
>>
>>  File "/usr/lib64/python2.4/site-packages/mod_python/apache.py", line
>>299, in HandlerDispatch
>>    result = object(req)
>>
>>  File "/usr/lib64/python2.4/site-packages/mod_python/publisher.py",
>>line 98, in handler
>>    path=[path])
>>
>>  File "/usr/lib64/python2.4/site-packages/mod_python/apache.py", line
>>457, in import_module
>>    module = imp.load_module(mname, f, p, d)
>>
>>  File "/home/www/patrik/simulations/junk.py", line 1, in ?
>>    import numarray
>>
>>  File "/usr/lib64/python2.4/site-packages/numarray/__init__.py", line
>>42, in ?
>>    from numarrayall import *
>>
>>  File "/usr/lib64/python2.4/site-packages/numarray/numarrayall.py",
>>line 1, in ?
>>    from numerictypes import *
>>
>>  File "/usr/lib64/python2.4/site-packages/numarray/numerictypes.py",
>>line 390, in ?
>>    from codegenerator.ufunccode import typecode
>>
>>  File
>>"/usr/lib64/python2.4/site-packages/numarray/codegenerator/__init__.py",
>>line 1, in ?
>>    from basecode import all_types
>>
>>  File
>>"/usr/lib64/python2.4/site-packages/numarray/codegenerator/basecode.py",
>>line 20, in ?
>>    if hasUInt64():
>>
>>  File
>>"/usr/lib64/python2.4/site-packages/numarray/codegenerator/basecode.py",
>>line 11, in hasUInt64
>>    return "--hasUInt64" in sys.argv
>>
>>AttributeError: 'module' object has no attribute 'argv'
>>
>>
>>
>>
>>This looks like sys.argv doesn't exist from within mod_python?  I agree
>>this information probably isn't useful in this context, but since all
>>documentation I've seen says that sys.argv is defined, it seems bad to
>>break existing software that relies on its existence. Shouldn't it just
>>be [''] like it is when you run the interpreter from the command line?
>>
>>Incidentally, if I reload the page, I get instead:
>>
>>Mod_python error: "PythonHandler mod_python.publisher"
>>
>>Traceback (most recent call last):
>>
>>  File "/usr/lib64/python2.4/site-packages/mod_python/apache.py", line
>>299, in HandlerDispatch
>>    result = object(req)
>>
>>  File "/usr/lib64/python2.4/site-packages/mod_python/publisher.py",
>>line 98, in handler
>>    path=[path])
>>
>>  File "/usr/lib64/python2.4/site-packages/mod_python/apache.py", line
>>457, in import_module
>>    module = imp.load_module(mname, f, p, d)
>>
>>  File "/home/www/patrik/simulations/junk.py", line 1, in ?
>>    import numarray
>>
>>  File "/usr/lib64/python2.4/site-packages/numarray/__init__.py", line
>>42, in ?
>>    from numarrayall import *
>>
>>  File "/usr/lib64/python2.4/site-packages/numarray/numarrayall.py",
>>line 1, in ?
>>    from numerictypes import *
>>
>>  File "/usr/lib64/python2.4/site-packages/numarray/numerictypes.py",
>>line 168, in ?
>>    Byte = _register("Byte",   Int8)
>>
>>  File "/usr/lib64/python2.4/site-packages/numarray/numerictypes.py",
>>line 68, in _register
>>    raise ValueError("Type %s has already been registered" % name)
>>
>>ValueError: Type Byte has already been registered
>>
>>
>>
>>If anyone has any ideas on how to fix this, I'd much appreciate it!
>>
>>Thanks,
>>
>>/Patrik
> 
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